Photoelectric Effect

This image is an illustration of

• photoelectric effect

• Dalton's atomic theory

• Bohr model

• Quantum mechanical model

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Which of the following is an example of light behaving like a particle?

• interference

• Doppler effect

• diffraction

• photoelectric effect

• refraction effect

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The only way to increase the number of photoelectrons emitted is by increasing the _________ of the light

• Intensity

• Wavelength

• Frequency

• Energy

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The energy of photoelectrons emitted from a metal surface can be increased by

• using light of higher frequency.

• using light of longer wavelength.

• using light of higher intensity.

• using monochromatic, polarized light.

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What is the photoelectric effect?

• The emission of electrons from a metal when light (with a high enough frequency) shines on it

• The increase in temperature of a metal when exposed to light

• The reflection of light from a metallic surface

• The bending of light when it passes through a metal

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Which scientist is most closely associated with explaining the photoelectric effect?

• Isaac Newton

• Albert Einstein

• Niels Bohr

• James Clerk Maxwell

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Which application uses the photoelectric effect, which demonstrates the particle nature of light?

• Radios

• Solar cells

• Fiber optics

• Ultrasound machines

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Does high-frequency or low frequency light cause the ejection of a greater number of electrons from a metal surface?

• only high frequency

• only low frequency

• both of them

• doesn't depend to frequency

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A particle of light is called a...

• Photoelectron

• Photon

• Proton

• Electron

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The Photoelectric Effect: What are the electrons coming out of?

• Metal

• Gas

• Liquid

• Ice

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